Joseph ennis fletcher



(No Model.)

J. E. FLETCHER.

AUTOMATIG LUBRIGATOR. No. 333,404. Patented Dec. 29,1885.

NITED STATES PATENT OFFICE.

JOSEPH ENNis FLETCHER, 0E MONTREAL, QUEBEC, CANADA, ASSIGNOR OF ONE-HALF TO ROBERT MITCHELL, 0E sAME PLACE.

AUTOMATIC LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 333,404, dated December 29, 1885.

Application filed July 8, 1885.

To all whom it may concern:

Be it known that I, J OSEPH ENNIs FLETCH- .ER, of the city of Montreal, in the district of Montreal and Province of Quebec, in the Dominion of Canada, have invented certain new and useful Improvements in Automatic Lubricators; and I do hereby declare that the following is a full, clear, and exact description of the same.

This invention relates to that class of oilcups which are used for the lubrication of crank and wrist pins, guides, connecting-rods, pillow-locks, and other moving or oscillating parts of machinery; and it consists of novel devices and combinations having for their object to feed the oil to the surfaces to be lubricated automatically by the motion of the parts to which the cup is attached.

For full comprehension of my improvements, reference must be had to the accompanying drawings, in which letters of reference similar to those hereinafter used indicate like parts in all the figures.

Figure l is a side elevation showing my oilcup attached to a crank-pin and connectingrod. Fig. 2 is a longitudinal sectional elevation showing the oil-plunger at one end of its str0ke;'Fig. 3, a similar view showing it in the reverse position. Fig. 4 is a cross-section on line a: 00, Fig. 3.

A represents the body of my oil-cup, made, preferably, with partly-open sides, as shown, so as to contain a glass cylinder, a, B being a screwed cap on one end of the cup, the removal of which permits the insertion of the internal parts. The oil is inserted through an opening in the body A, which is closed by a screwed plug, 0. Into a convenient part of the body A is screwed or otherwise fixed one end of a bent rod, D, which passes in close proximity to the wall of the cup, the other end, d, of said rod being bent approximately at right angles thereto, and serving to support loosely the end of a horizontal spindle or plunger-rod, E, part of which slides in a tube, F, cast in one with or affixed to the body A and arranged horizontally within the cup. This tube F communicates by an oilway,f, with an extension, G, of the body A, and in this extension is arranged the outlet-passage g. Pivoted to and hanging from the rod D is a swinging lever,

Serial No. 170,948. (No model.)

H, having a weighted end, h,which is slightly forked or grooved, as at h, so as to loosely embrace the plunger-rod E,two collars or stops, 6 0, being arranged on said plunger-rod, so as to be acted upon alternately by the lever H as it oscillates to and fro with the motion of the machinery.

That part of the plunger-rod E which slides within the tube F is by preference of triangular shape, as shown more particularly in Fig. 4. This will allow the oil to freely enter the tube from the open end; but in addition to this there are usually holes f in the tube near its inner end, through which oil from the cup will flow. The point or head of the plunger will be of any desired form. Within the projection G, and preferably in line with the oil-passage f, is a regulating-screw, K, which is operated to close more or less the communicating channel between the passage f and outlet 9, and thus regulate the supply of oil forced by the plunger through said passages. The head of this regulating-screw K is preferably covered by an additional screwed cap, K, which will make a tight joint and prevent leakage at that point.

The operation of my invention will be understood from the foregoing; but I may further remark that the oscillation or movement of the crank, &c., to which the cup is attached will cause the lever H to swing to and fro and strike alternately against the collars or stops 6 e, which will throw the plunger E forward and backward within the tube F and cause the oil from the cup to be alternately drawn in through the holes f and projected through the passage f, and thence through the outlet 9 to the surface to be lubricated.

It will be seen that by my improvements I am enabled to produce an automatic lubricator at small cost, and one which will be positive in its action, and, from the absence of springs or other complicated parts, one which will not easily get out of order.

What I claim is as follows:

1. An automatic lubricator consisting of a cup having arranged therein ahorizontaltube receiving oil from the cup and communicating with outlet, a plunger working in said tube to discharge the lubricant, a weighted swinging lever operating said plunger, and a rod attached t0 the cup-body and carrying said swinging whole being contained Within the cup, and lever, substantially as specified. operating substantially as and for the puqmse IO 2. The combination, in an an oil-cup, of the specified. tube F, having perforationsf, and communi- 5 eating with the outlet, plunger E,W0rking in JOSEPH ENNIS FLETCHER" said tube, and having collars or stops 6 e, WVitnesses:

swinging lever H, operatingsaid plunger, and R. A. KELLOND,

1'0d D, supporting said lever and plunger, the O. R. MCDOWELL. 

